New ML Mik90 owner here - I just did a trade with a fellow Head-fier for a very lightly used (and thus un-burned in) Mikros 90....so I'm putting them through their paces. First up is a disc by the Renaissance/early-music group, the Baltimore Consort, playing a disc full of English Ellizabethan tunes from a few centuries back, 'Watkins Ale'. The music has a good cross-section of period string and wind instruments, everything from various precursors of violins (viols, citterns) to recorders, lutes, and you-name-it. A great cross section of instrumental sounds, textures, timbres and voices. And ----
And the ML's are, so far at least, passing with flyng colors. There's a crispness and a lightness, a great sense of voicing and even some soundstage which is surprising to me. The best part though I think may be the lower registers - the richness of the bass viols and some other instruments which sound a lot like cellos - coming through dark and strong which, yep, is surprsing to me given the diminutive size/shape of these phones.
They are replacing a pair of excellent low-fi phones, the underrated (and dirt-cheap) Noontec Zoros which were astoundingly good but aren't quite in the same league as these when it comes to the delilneation of individual instruments - strings - and even notes.
My jury is still out on a larger, multi-instrumental or symphonic sound - something which another old pair of headphones, my former Beyerdynamic DT-660's, may have been, in my opinion, the all time best classical reference cans I ever heard. So that's down the road...
But the ability to reproduce an overall complex piece while keeping individual instrumental voices.....is pretty effing cool.
Also, at least so far, the occasionally maligned overly-forceful clamping which some people have complained about....hasn't been an issue for me. Yet. (And I have a modernately large skull.) Hopefully that will continue.
But they're damn nice headphones so far